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Author: Robert Martin Publisher: Basic Books (AZ) ISBN: 0465030157 Category : Science Languages : en Pages : 322
Book Description
A primatologist explores the mystery of the origins of human reproduction, explaining that understanding the evolutionary past can provide insight into what worked, what didn't, and what it all means for the future of mankind.
Author: Robert Martin Publisher: Basic Books (AZ) ISBN: 0465030157 Category : Science Languages : en Pages : 322
Book Description
A primatologist explores the mystery of the origins of human reproduction, explaining that understanding the evolutionary past can provide insight into what worked, what didn't, and what it all means for the future of mankind.
Author: Robert Martin Publisher: Basic Books ISBN: 0465037844 Category : Science Languages : en Pages : 322
Book Description
Despite the widespread belief that natural is better when it comes to sex, pregnancy, and parenting, most of us have no idea what "natural" really means; the origins of our reproductive lives remain a mystery. Why are a quarter of a billion sperm cells needed to fertilize one egg? Are women really fertile for only a few days each month? How long should babies be breast-fed? In How We Do It, primatologist Robert Martin draws on forty years of research to locate the roots of everything from our sex cells to the way we care for newborns. He examines the procreative history of humans as well as that of our primate kin to reveal what's really natural when it comes to making and raising babies, and distinguish which behaviors we ought to continue -- and which we should not. Although it's not realistic to raise our children like our ancestors did, Martin's investigation reveals surprising consequences of -- and suggests ways to improve upon -- the way we do things now. For instance, he explains why choosing a midwife rather than an obstetrician may have a greater impact than we think on our birthing experience, examines the advantages of breast-feeding for both mothers and babies, and suggests why babies may be ready for toilet training far earlier than is commonly practiced. How We Do It offers much-needed context for our reproductive and child-rearing practices, and shows that once we understand our evolutionary past, we can consider what worked, what didn't't, and what it all means for the future of our species.
Author: Andrew (Andrey N.) Ostrovsky Publisher: Springer Science & Business Media ISBN: 9400771460 Category : Science Languages : en Pages : 387
Book Description
Three major aspects that distinguish this book are that (1) it contains the most detailed analysis of the sexual reproduction (oogenesis, fertilization and embryonic incubation) in a particular phylum of the aquatic invertebrates (Bryozoa) ever made; this analysis is based on an exhaustive review of the literature on that topic published over the last 260 years, as well as extensive original histological, anatomical and morphological data obtained during studies of both extant and extinct species; (2) this broad analysis has made it possible to reconstruct the major patterns, stages and trends in the evolution of sexual reproduction in various bryozoan clades, showing numerous examples of parallelisms during transitions from broadcasting to embryonic incubation, from planktotrophic to non-feeding larvae and from lecithotrophy to placentation; corresponding shifts in oogenesis, fertilization and embryonic development are discussed in detail; and (3) the key evolutionary novelties acquired by Bryozoa are compared with similar innovations that have evolved in other groups of marine invertebrates, showing the general trends in the evolution of their sexual reproduction. Ecological background of these innovations is considered too. Altogether these aspects make the monograph an “Encyclopedia of bryozoan sexual reproduction,” offering an integral picture of the evolution of this complex phenomenon.
Author: Therese A. Markow Publisher: Elsevier ISBN: 0080454097 Category : Science Languages : en Pages : 268
Book Description
Anyone wishing to tap the research potential of the hundreds of Drosophila species in addition to D.melanogaster will finally have a single comprehensive resource for identifying, rearing and using this diverse group of insects. This is the only group of higher eukaryotes for which the genomes of 12 species have been sequenced.The fruitfly Drosophila melanogaster continues to be one of the greatest sources of information regarding the principles of heredity that apply to all animals, including humans. In reality, however, over a thousand different species of Drosophila exist, each with the potential to make their own unique contributions to the rapidly changing fields of genetics and evolution. This book, by providing basic information on how to identify and breed these other fruitflies, will allow investigators to take advantage, on a large scale, of the valuable qualities of these other Drosophila species and their newly developed genomic resources to address critical scientific questions. * Provides easy to use keys and illustrations to identify different Drosophila species* A guide to the life history differences of hundreds of species* Worldwide distribution maps of hundreds of species* Complete recipes for different Drosophila diets* Offers an analysis on how to account for species differences in designing and conducting experiments* Presents useful ideas of how to collect the many different Drosophila species in the wild
Author: Samantha Fowler Publisher: ISBN: 9781680921021 Category : Languages : en Pages : 624
Book Description
Concepts of Biology is designed for the introductory biology course for nonmajors taught at most two- and four-year colleges. The scope, sequence, and level of the program are designed to match typical course syllabi in the market. Concepts of Biology includes interesting applications, features a rich art program, and conveys the major themes of biology. The images in this textbook are grayscale.
Author: Stephen Rothman Publisher: Prometheus Books ISBN: 1633880737 Category : Science Languages : en Pages : 250
Book Description
This book examines a little-noted contradiction inherent in the two essential elements of Darwin's theory of biological evolution--natural selection and reproduction. Physiologist Stephen Rothman makes the revolutionary claim that the evolution of life's complex and diverse reproductive mechanisms is not the consequence of natural selection. In so doing, he exposes the deepest question possible about life's nature--its reason for being. In meticulously detailed but accessible terms he lays out the crux of the paradox and offers an intriguing solution within a naturalistic framework. In an ostensibly purposeless universe, somehow purposeful life has evolved. For all living things there are two overarching purposes: survival and the creation of new life. Natural selection is about the survival of existing life, but has no interest in life's future, about whether it persists or perishes. By contrast, reproduction is only about the future of life, and has no interest in existing life except as a means to that end. Where do these purposes come from? As Rothman demonstrates, at every level life is wired to react to danger. Counterintuitively, without the danger to its existence, life would not have come into being. As for reproduction, nature's destructive forces drive the creation of new life. Written with great clarity and informed by deep learning, this elegant, thoughtful work tackles some of the most challenging questions raised by the theory of evolution, while calling to mind Darwin's famous words from the conclusion of On the Origin of Species: "There is a grandeur in this view of life."
Author: Robert Martin
Author: Robert Martin
Author: Colin Russell Austin
Author: Robert Martin
Author: Edward Murray East
Author: Sir Patrick Geddes
Author: Andrew (Andrey N.) Ostrovsky
Author: Therese A. Markow
Author: Alan F. Dixson
Author: Samantha Fowler
Author: Stephen Rothman